Table 3.

Distribution fraction of 12 different forms of alendronate sodium.

Forms	$\delta H_{5}A$	$\delta H_4{A}^{-}$	$\delta H_3{A}^{2-}$	$\delta H_2{A}^{3-}$	$\delta H{A}^{4-}$	$\delta A^{5-}$
δ$RN{H}_2$	δ Form 1	δ Form 2	δ Form 3	δ Form 4	δ Form 5	δ Form 6
δ$RN{H}_3^{+}$	δ Form 7	δ Form 8	δ Form 9	δ Form 10	δ Form 11	δ Form 12

where δ represents distribution fraction

δ Form X represents the distribution fraction of the form that contains the two ion types in its corresponding row and column. e.g. δ Form 1=$\delta H_{5}A$*$\delta RN{H}_2$.